Mercurial > dive4elements > gnv-client
annotate gnv-artifacts/src/main/java/de/intevation/gnv/exports/DefaultExport.java @ 233:2ceb4bf51cba
Added DataCollector which collects data used for exports.
gnv-artifacts/trunk@301 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Mon, 09 Nov 2009 09:43:52 +0000 |
parents | f68ffbe974a0 |
children | 75da91eca29f |
rev | line source |
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f68ffbe974a0
Implemented an exporter for odv and csv exports.
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1 package de.intevation.gnv.exports; |
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2 |
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3 import org.apache.log4j.Logger; |
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4 |
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5 import au.com.bytecode.opencsv.CSVWriter; |
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6 |
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7 import java.util.List; |
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8 import java.util.Iterator; |
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9 import java.util.Collection; |
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10 |
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11 import java.io.UnsupportedEncodingException; |
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12 import java.io.IOException; |
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13 import java.io.OutputStreamWriter; |
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14 import java.io.OutputStream; |
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15 |
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16 import de.intevation.gnv.exports.Export.Profile; |
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17 |
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18 import de.intevation.gnv.geobackend.base.Result; |
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19 import de.intevation.gnv.geobackend.base.ResultDescriptor; |
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20 |
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21 import de.intevation.gnv.transition.exception.TransitionException; |
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22 |
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23 /** |
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24 * @author Sascha L. Teichmann (sascha.teichmann@intevation.de) |
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25 * @author Ingo Weinzierl (ingo.weinzierl@intevation.de) |
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26 */ |
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27 public class DefaultExport |
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28 implements Export |
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29 { |
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30 private static Logger log = Logger.getLogger(DefaultExport.class); |
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31 |
233
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32 private Export.DataCollector collector; |
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33 |
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34 public DefaultExport(Export.DataCollector collector) { |
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35 this.collector = collector; |
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36 } |
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37 |
230
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38 protected void writeData( |
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39 Profile profile, |
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40 Collection result, |
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41 CSVWriter writer |
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42 ) |
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43 throws TransitionException { |
230
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44 log.debug("create content for export."); |
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45 Iterator<Result> it = result.iterator(); |
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46 |
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47 while (it.hasNext()) { |
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48 Result res = it.next(); |
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49 |
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50 writer.writeNext(collector.getData(res)); |
230
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51 } |
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52 } |
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53 |
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54 public void create( |
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55 Profile profile, |
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56 OutputStream outputStream, |
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57 Collection result |
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58 ) |
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59 throws |
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60 IOException, |
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61 UnsupportedEncodingException, |
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62 TransitionException |
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63 { |
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64 if (result == null) { |
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65 String msg = "No data given for generation of " + |
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66 profile.getType() + " file."; |
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67 log.error(msg); |
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68 throw new TransitionException(msg); |
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69 } |
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70 |
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71 CSVWriter writer = new CSVWriter( |
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72 new OutputStreamWriter( |
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73 outputStream, |
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74 profile.getEncoding()), |
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75 profile.getSeparator(), |
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76 profile.getQuoteCharacter(), |
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77 profile.getEscapeCharacter()); |
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78 |
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79 writeData(profile, result, writer); |
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80 |
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81 writer.close(); |
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82 } |
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83 } |